Previous

199869 Revisions

Next

r17756 Sunday 9th September, 2012 at 16:11:37 UTC by hap
rommask makes more sense

[src/emu/sound]	upd7759.c
[src/mame/drivers]	homerun.c snk68.c

trunk/src/mame/drivers/snk68.c

r17755	r17756
665	665	ROM_LOAD16_BYTE( "snk880.22a", 0x1c0000, 0x20000, CRC(aa9c00d8) SHA1(1017ed1cc036c6084b71204a998fd05557a6e59f) )
666	666	ROM_LOAD16_BYTE( "snk880.26a", 0x1c0001, 0x20000, CRC(9bc261c5) SHA1(f07fef465191d48ccc149d1a62e6382d3fc0ef9f) )
667	667
668		ROM_REGION( 0x20000, "upd", ROMREGION_ERASE00 )   /* UPD7759 samples */
	668	ROM_REGION( 0x10000, "upd", 0 )   /* UPD7759 samples */
669	669	ROM_LOAD( "dg7.d20",  0x000000, 0x10000, CRC(aba9a9d3) SHA1(5098cd3a064b8ede24797de8879a277d79e79d75) )
670	670
671	671	ROM_REGION( 0x0100, "plds", 0 )
r17755	r17756
702	702	ROM_LOAD16_BYTE( "snk880.22a", 0x1c0000, 0x20000, CRC(aa9c00d8) SHA1(1017ed1cc036c6084b71204a998fd05557a6e59f) )
703	703	ROM_LOAD16_BYTE( "snk880.26a", 0x1c0001, 0x20000, CRC(9bc261c5) SHA1(f07fef465191d48ccc149d1a62e6382d3fc0ef9f) )
704	704
705		ROM_REGION( 0x20000, "upd", ROMREGION_ERASE00 )   /* UPD7759 samples */
	705	ROM_REGION( 0x10000, "upd", 0 )   /* UPD7759 samples */
706	706	ROM_LOAD( "dg7.d20",  0x000000, 0x10000, CRC(aba9a9d3) SHA1(5098cd3a064b8ede24797de8879a277d79e79d75) )
707	707
708	708	ROM_REGION( 0x0100, "plds", 0 )

trunk/src/mame/drivers/homerun.c

r17755	r17756
361	361	ROM_REGION( 0x20000, "gfx2", 0 )
362	362	ROM_LOAD( "homerun.ic120",  0x00000, 0x20000, CRC(52f0709b) SHA1(19e675bcccadb774f60ec5929fc1fb5cf0d3f617) )
363	363
364		ROM_REGION( 0x20000, "d7756c", ROMREGION_ERASE00 )
	364	ROM_REGION( 0x08000, "d7756c", ROMREGION_ERASE00 )
365	365	ROM_LOAD( "d7756c.ic98",    0x00000, 0x08000, NO_DUMP ) /* D7756C built-in rom */
366	366	ROM_END
367	367
r17755	r17756
377	377	ROM_REGION( 0x20000, "gfx2", 0 )
378	378	ROM_LOAD( "2.ic120",        0x00000, 0x20000, CRC(bedf7b98) SHA1(cb6c5fcaf8df5f5c7636c3c8f79b9dda78e30c2e) )
379	379
380		ROM_REGION( 0x20000, "d7756c", ROMREGION_ERASE00 )
	380	ROM_REGION( 0x08000, "d7756c", ROMREGION_ERASE00 )
381	381	ROM_LOAD( "d7756c.ic98",    0x00000, 0x08000, NO_DUMP ) /* D7756C built-in rom */
382	382	ROM_END
383	383
r17755	r17756
393	393	ROM_REGION( 0x20000, "gfx2", 0 )
394	394	ROM_LOAD( "2.ic120",        0x00000, 0x20000, CRC(e65d4d57) SHA1(2ec9e5bdaa94b808573313b6eca657d798004b53) )
395	395
396		ROM_REGION( 0x20000, "d7756c", ROMREGION_ERASE00 )
	396	ROM_REGION( 0x08000, "d7756c", 0 )
397	397	ROM_LOAD( "d77p56cr.ic98",  0x00000, 0x08000, CRC(06a234ac) SHA1(b4ceff3f9f78551cf4a085642e162e33b266f067) ) /* D77P56CR OTP rom (One-Time Programmable, note the extra P) */
398	398	ROM_END
399	399

trunk/src/emu/sound/upd7759.c

r17755	r17756
189	189	UINT8 *      rom;                  /* pointer to ROM data or NULL for slave mode */
190	190	UINT8 *      rombase;               /* pointer to ROM data or NULL for slave mode */
191	191	UINT32      romoffset;               /* ROM offset to make save/restore easier */
	192	UINT32      rommask;               /* maximum address offset */
192	193	};
193	194
194	195
r17755	r17756
342	343	case STATE_ADDR_LSB:
343	344	chip->offset |= (chip->rom ? chip->rom[chip->req_sample * 2 + 6] : chip->fifo_in) << chip->sample_offset_shift;
344	345	if (DEBUG_STATES) DEBUG_METHOD("UPD7759: offset_lo = %02X, requesting dummy 2\n", (chip->offset >> chip->sample_offset_shift) & 0xff);
	346	if (chip->offset > chip->rommask) logerror("upd7759 offset %X > rommask %X\n",chip->offset, chip->rommask);
345	347	chip->drq = 1;
346	348
347	349	/* 36 cycles later, we will latch this value and request another byte */
r17755	r17756
371	373	chip->repeat_count--;
372	374	chip->offset = chip->repeat_offset;
373	375	}
374		chip->block_header = chip->rom ? chip->rom[chip->offset++ & 0x1ffff] : chip->fifo_in;
	376	chip->block_header = chip->rom ? chip->rom[chip->offset++ & chip->rommask] : chip->fifo_in;
375	377	if (DEBUG_STATES) DEBUG_METHOD("UPD7759: header (@%05X) = %02X, requesting next byte\n", chip->offset, chip->block_header);
376	378	chip->drq = 1;
377	379
r17755	r17756
414	416	/* Nibble count state: latch the number of nibbles to play and request another byte */
415	417	/* The expected response will be the first data byte */
416	418	case STATE_NIBBLE_COUNT:
417		chip->nibbles_left = (chip->rom ? chip->rom[chip->offset++ & 0x1ffff] : chip->fifo_in) + 1;
	419	chip->nibbles_left = (chip->rom ? chip->rom[chip->offset++ & chip->rommask] : chip->fifo_in) + 1;
418	420	if (DEBUG_STATES) DEBUG_METHOD("UPD7759: nibble_count = %u, requesting next byte\n", (unsigned)chip->nibbles_left);
419	421	chip->drq = 1;
420	422
r17755	r17756
426	428	/* MSN state: latch the data for this pair of samples and request another byte */
427	429	/* The expected response will be the next sample data or another header */
428	430	case STATE_NIBBLE_MSN:
429		chip->adpcm_data = chip->rom ? chip->rom[chip->offset++ & 0x1ffff] : chip->fifo_in;
	431	chip->adpcm_data = chip->rom ? chip->rom[chip->offset++ & chip->rommask] : chip->fifo_in;
430	432	update_adpcm(chip, chip->adpcm_data >> 4);
431	433	chip->drq = 1;
432	434
r17755	r17756
544	546	advance_state(chip);
545	547
546	548	/* if the DRQ changed, update it */
547		logerror("slave_update: DRQ %d->%d\n", olddrq, chip->drq);
	549	logerror("upd7759_slave_update: DRQ %d->%d\n", olddrq, chip->drq);
548	550	if (olddrq != chip->drq && chip->drqcallback)
549	551	(*chip->drqcallback)(chip->device, chip->drq);
550	552
r17755	r17756
662	664	chip->romoffset = 0;
663	665	chip->rom = chip->rombase = *device->region();
664	666	if (chip->rombase == NULL)
	667	{
665	668	chip->timer = device->machine().scheduler().timer_alloc(FUNC(upd7759_slave_update), chip);
	669	chip->rommask = 0;
	670	}
666	671	else
667		assert((device->region()->bytes() & 0x1ffff) == 0);
	672	{
	673	UINT32 romsize = device->region()->bytes();
	674	if (romsize >= 0x20000) chip->rommask = 0x1ffff;
	675	else chip->rommask = romsize - 1;
	676	}
668	677
669	678	/* set the DRQ callback */
670	679	chip->drqcallback = intf->drqcallback;

Previous

199869 Revisions

Next

---

© 1997-2024 The MAME Team